Added in the SSH command

Also started adding in configuration options so a command can be customized.

https://github.com/wallerjake/toolshed/issues/21
Add ability to read a sudo password form toolshedrc file

https://github.com/wallerjake/toolshed/issues/21
Added in a password manager to handle sudo or regular passwords

https://github.com/wallerjake/toolshed/issues/21
Refactored the SSH into own class

https://github.com/wallerjake/toolshed/issues/21
Merge pull request #22 from wallerjake/21_toolshed_shall_add_a_ssh_command

21 toolshed shall add a ssh command